Window-blind



(No Model.)

m w 40 J m 1m V w n m I P a 8 a 00 8 7 e 8, w m f 2 J0 w 0 N UNHED STATES PATENT @FMCEO JOHN D. FREESE, OF CHICAGO, ILLINOIS.

WINDOW-BLIND.

SPECIFICATION forming part of Letters Patent No. 252,873, dated January 31, 1882.

' Application filed O tober17, 1881.

To all whom it may concern Be it known that I, JOHN D. FREEsE, of Chicago, in the county of Cook andfitate of Illinois, have invented certain new and useful Improvements in Window-Blinds, of which the following, in connection with the accompanying drawings, is a specification.

In the drawings, Figure 1 is a perspective of a window provided with blinds embodying my invention. Fig. 2 is a perspective of a part of a like blind, enlarged, and Fig. 3 is a section in the plane of the line 00 90 of Fig. 2.

Like letters of reference indicate like parts.

My purpose is to furnish inexpensive protection against the ingress through windows of cold in winter and of insects in summer; and my invention consists in the means, substantially as hereinafter specified, which I employ for that purpose.

A represents a window-blind, which may be constructed in any well-known or suitable way.

B is a frame, applied to the outer face or side of the frame of the blind A. The frame B consists of the part a, from which is laid the lower and outwardly-projecting flange, a, and the upper or inwardly-projecting flange, a.

0 is a frame fitting within the frame B.

D is a packing arranged between the blind and the frame B, and E is a packing laid under the flange a.

F is a sheet of glass, arranged between the packing E and the frame 0.

The flange a may be fastened to the blind in any suitable way, preferably by means of screws b I), as shown, and when this is done the glass F, as will be perceived, will be clamped to the blind in such a way as to prevent the (No model.)

ingress of cold during winter without preventing the slats of the blind from being turned in the usual manner for the purpose of regulating the entrance of light. The blind may also be opened, as usual, for the purpose of ventilation. By this means all the advantages of a double window or window-sash are secured in a very simple and inexpensive way.

In warm weather the glass F may be removed and a screen of wire-cloth or other suitable material arranged in its place with facility, for the purpose of preventing the entranceof insects.

It will be perceived that I do not in any way alter either the construction of the window or of the blinds, and that both may be operated in the usual manner, the devices which I apply being removable attachments adapted to be applied to any blind. \V'nen a window is pro vided with double blinds these attachments may extend across or over the meeting edges of the blinds, if deemed best.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is-

The combination, with a window-blind, of the removable frames B and (J and a screen of glass or other material, the removable frames and screen being arranged on the outside of the blind, the frame 0 being within the frame B, and the screen being between the said frames, substantially as and for the purposes specified.

JOHN D. FREESE.

Witnesses:

HENRY FRANKFUR'IER, F. F. WARNER. 

